public class BabyNames extends Text
{
    public double countBoys()
    {
        double column = 1;
        . . .
        
        for (double number : getNumbers())
        {
            if (column == 2)
            {
                // process number for boys
                . . .
            }
            column++;
            if (column == 4)
            {
                column = 1;
            }
        }
        return . . .;
    }
}